Home / 918,424,161.90-1,377,641,316.69-228,331,416.78

Finding the Fourth Proportional to 918,424,161.90, 1,377,641,316.69 and 228,331,416.78

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Solution

The fourth proportional to 918,424,161.90, 1,377,641,316.69 and 228,331,416.78 is: 342,498,386.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,424,161.90 : 1,377,641,316.69 = 228,331,416.78 : x
  2. Step 2: Convert to fraction form
    918,424,161.90/1,377,641,316.69 = 228,331,416.78/x
  3. Step 3: Cross multiply
    918,424,161.90x = 1,377,641,316.69 × 228,331,416.78
  4. Step 4: Simplify right side
    918,424,161.90x = 314,558,793,654,492,352
  5. Step 5: Solve for x
    x = 314,558,793,654,492,352/918,424,161.90
  6. Step 6: Final answer
    x = 342,498,386.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.